Drive or Fly: DeKalb, IL to Decatur, IL?

Side-by-side comparison of driving versus flying for this route. Costs, time, and trade-offs at a glance.

Driving wins

Medium

No scheduled commercial flights found for RFD–DEC. At 165 miles, driving is the only practical option.

Passengers:

Vehicle:

Drive

Door to Door

2h 43m

Distance

165.8 mi

Total Cost

$72

CO2

67 kg

Cost Breakdown

Diesel$37

Hotel (1 room, 0 nights) $0

Meals (1 pax, 1 day) $35

+ No luggage restrictions or TSA lines

+ Comfortable one-day drive

+ Stop anywhere along the route

+ Have your own car at the destination

+ Likely faster door-to-door than flying

− Wear and tear on vehicle

− Fuel price fluctuations

Plan the drive

Fly

Door to Door

3h 5m

17m in the air

Air Distance

145 mi

Total Cost

$126

CO2

37 kg

Door-to-Door Timeline

DeKalb, IL → RFD 38m

Check-in & Security 90m

Flight 17m

Arrival & Baggage 30m

DEC → Decatur, IL 10m

Cost Breakdown

Ticket (1 pax @ $126) $126

Airports

DeKalb, IL RFD — Chicago Rockford International Airport 26 mi, ~38m drive

Decatur, IL DEC — Decatur Airport 5 mi, ~10m drive

No scheduled flights found

No commercial flights between RFD and DEC. Flight estimates above are theoretical.

+ Less physical fatigue

+ Predictable arrival time

− Airport security and check-in overhead

− No scheduled commercial flights found for this route

− Luggage fees and restrictions

− Less flexibility for stops along the way

At a Glance

	Drive	Fly
Door-to-door time	2h 43m	3h 5m
Total cost (1 person)	$72	$126
Carbon footprint	67 kg CO₂	37 kg CO₂
Flexibility	High	Low
Luggage	Unlimited	Restricted
Reliability	Weather dependent	Data unavailable

Drive data: OSRM routing, EIA fuel prices

Flight data: Statistical estimate

Airports: OurAirports

Confidence: Medium — airports identified, fares estimated

Costs are estimates. Actual flight prices vary by airline, date, and booking time. Drive costs based on OSRM routing, EIA fuel prices. Computed Apr 12, 2026.

Decided to drive? See the full trip plan from DeKalb, IL to Decatur, IL with stops, fuel costs, and turn-by-turn directions.